Finding the sum of sequence

Marvins Daniel's picture
Submitted by Marvins Daniel on April 21, 2018 - 12:23am

how will i use calculator to solve this

The sum of 5th term of Ap is 10,
The sum of 10th term of Ap is 20
Find the common diff,first term

sum of 26th term

Jhun Vert's picture

Submitted by Jhun Vert on April 22, 2018 - 3:29pm.

The sum of 5th term of Ap is 10

Do you mean "sum of the first 5 terms"?

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